/* roulang page: index */
:root{
  --brand:#1D6FB8;
  --brand-deep:#14507F;
  --brand-soft:#E8F1F8;
  --brand-line:#C6DDF0;
  --accent:#E08A3C;
  --accent-deep:#C9762A;
  --accent-soft:#FDF3E7;
  --ink:#1F2937;
  --ink-sub:#5B6B7C;
  --line:#E3E9F0;
  --canvas:#F6F8FB;
  --white:#FFFFFF;
  --warn:#C2410C;
  --ok:#2F9E6E;
  --radius-card:16px;
  --radius-thumb:12px;
  --radius-field:10px;
  --radius-chip:999px;
  --shadow-card:0 1px 2px rgba(16,42,67,.05),0 10px 30px -18px rgba(16,66,110,.28);
  --shadow-hover:0 2px 4px rgba(16,42,67,.06),0 18px 40px -20px rgba(16,66,110,.36);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:120px;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:17px;line-height:30px;color:var(--ink);background:var(--canvas);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
input{font:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p,figure{margin:0}
.font-num{font-family:Inter,"DIN Alternate",-apple-system,sans-serif;font-variant-numeric:tabular-nums}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}

/* ---------- 导航 ---------- */
.site-header{position:sticky;top:0;z-index:50;background:#fff;border-bottom:1px solid var(--line);transition:box-shadow .2s var(--ease)}
.site-header.is-stuck{box-shadow:0 8px 24px -18px rgba(16,66,110,.45)}
.nav-top{display:flex;align-items:center;gap:28px;height:72px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{width:38px;height:38px;border-radius:11px;background:linear-gradient(90deg,var(--brand),var(--brand-deep));color:#fff;display:flex;align-items:center;justify-content:center;flex-shrink:0}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-name{font-size:17px;font-weight:700;letter-spacing:-.01em;color:var(--ink)}
.brand-sub{font-size:12px;color:var(--ink-sub);letter-spacing:.06em;margin-top:2px}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:6px}
.nav-link{font-size:15px;color:var(--ink-sub);padding:8px 12px;border-radius:8px;transition:color .18s var(--ease),background-color .18s var(--ease)}
.nav-link:hover{color:var(--brand);background:var(--brand-soft)}
.nav-link.active{color:var(--brand);font-weight:600}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:12px}
.nav-search{position:relative;display:flex;align-items:center}
.nav-search svg{position:absolute;left:12px;color:var(--ink-sub);pointer-events:none}
.nav-search input{width:248px;height:42px;padding:0 14px 0 36px;border:1px solid var(--line);border-radius:var(--radius-chip);background:var(--canvas);color:var(--ink);font-size:14px;transition:border-color .18s var(--ease),box-shadow .18s var(--ease),background-color .18s var(--ease)}
.nav-search input::placeholder{color:#9AA7B4}
.nav-search input:focus{outline:none;background:#fff;border-color:var(--brand);box-shadow:0 0 0 3px var(--brand-soft)}
.nav-burger{display:none;width:42px;height:42px;border:1px solid var(--line);border-radius:var(--radius-field);align-items:center;justify-content:center;color:var(--ink);transition:background-color .18s var(--ease),border-color .18s var(--ease)}
.nav-burger:hover{background:var(--brand-soft);border-color:var(--brand-line)}
.nav-channels{position:relative;height:48px;display:flex;align-items:center;gap:8px;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none}
.nav-channels::-webkit-scrollbar{display:none}
.nav-channels::before,.nav-channels::after{content:"";position:sticky;top:0;width:24px;height:100%;flex:0 0 24px;pointer-events:none;z-index:2}
.nav-channels::before{left:0;background:linear-gradient(90deg,#fff,rgba(255,255,255,0))}
.nav-channels::after{right:0;background:linear-gradient(270deg,#fff,rgba(255,255,255,0))}
.pill{flex:0 0 auto;display:inline-flex;align-items:center;height:32px;padding:0 16px;border-radius:var(--radius-chip);font-size:14px;color:var(--ink-sub);white-space:nowrap;transition:background-color .18s var(--ease),color .18s var(--ease)}
.pill:hover{background:var(--canvas);color:var(--ink)}
.pill.active{background:var(--brand);color:#fff;font-weight:600}
.mobile-drawer{display:none;border-top:1px solid var(--line);background:#fff;padding:12px 0 18px}
.mobile-drawer.open{display:block}
.mobile-drawer a{display:block;padding:12px 4px;font-size:16px;color:var(--ink);border-bottom:1px solid var(--line)}
.mobile-drawer a:last-child{border-bottom:0}
.mobile-drawer a.active{color:var(--brand);font-weight:600}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:46px;padding:0 24px;border-radius:var(--radius-field);font-size:15px;font-weight:600;letter-spacing:.01em;transition:transform .18s var(--ease),box-shadow .18s var(--ease),background-color .18s var(--ease),border-color .18s var(--ease),color .18s var(--ease)}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 8px 20px -12px rgba(224,138,60,.75)}
.btn-primary:hover{background:var(--accent-deep);transform:translateY(-1px);box-shadow:var(--shadow-hover)}
.btn-primary:active{transform:translateY(0);box-shadow:none}
.btn-brand{background:linear-gradient(90deg,var(--brand),var(--brand-deep));color:#fff}
.btn-brand:hover{transform:translateY(-1px);box-shadow:var(--shadow-hover)}
.btn-brand:active{transform:translateY(0);box-shadow:none}
.btn-ghost{background:#fff;color:var(--ink);border:1px solid var(--line)}
.btn-ghost:hover{background:var(--brand-soft);border-color:var(--brand-line);color:var(--brand)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-text{display:inline-flex;align-items:center;gap:6px;color:var(--brand);font-size:15px;font-weight:600;transition:color .18s var(--ease)}
.btn-text svg{transition:transform .18s var(--ease)}
.btn-text:hover{color:var(--brand-deep)}
.btn-text:hover svg{transform:translateX(2px)}
.btn:disabled,.btn[aria-disabled="true"]{background:var(--canvas);color:var(--ink-sub);opacity:.6;box-shadow:none;cursor:not-allowed;transform:none}

/* ---------- 通用板块 ---------- */
.section{padding:88px 0}
.section-alt{background:#fff}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px}
.eyebrow{font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--brand);font-weight:600;margin-bottom:10px}
.sec-title{font-size:28px;line-height:36px;font-weight:700;letter-spacing:-.01em;color:var(--ink)}
.sec-desc{margin-top:12px;font-size:15px;line-height:26px;color:var(--ink-sub);max-width:620px}
.badge{display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--radius-chip);background:var(--brand-soft);color:var(--brand);font-size:13px;font-weight:500;white-space:nowrap}
.badge-accent{background:var(--accent-soft);color:var(--accent-deep)}
.badge-ok{background:#E9F6F0;color:var(--ok)}

/* ---------- Hero ---------- */
.hero{background:linear-gradient(180deg,#FFFFFF 0%,var(--canvas) 100%);padding:64px 0 72px}
.hero-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:48px;align-items:center}
.hero-copy{grid-column:span 6}
.hero-title{font-size:40px;line-height:52px;font-weight:700;letter-spacing:-.015em;color:var(--ink);margin-bottom:20px}
.hero-sub{font-size:17px;line-height:30px;color:var(--ink-sub);margin-bottom:26px;max-width:520px}
.hero-meta{display:flex;flex-wrap:wrap;gap:14px 26px;padding:18px 0 22px;border-top:1px solid var(--line);border-bottom:1px solid var(--line);margin-bottom:28px}
.hero-meta li{display:flex;flex-direction:column;gap:2px}
.hero-meta span{font-size:12px;color:var(--ink-sub);letter-spacing:.06em}
.hero-meta strong{font-size:15px;font-weight:600;color:var(--ink)}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px}
.hero-media{grid-column:span 6;position:relative}
.hero-media img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--radius-card);border:1px solid var(--line);background:var(--canvas)}
.hero-note{position:absolute;left:20px;bottom:20px;right:20px;display:flex;align-items:center;gap:12px;background:rgba(255,255,255,.96);border:1px solid var(--brand-line);border-radius:12px;padding:12px 16px;box-shadow:var(--shadow-card)}
.note-dot{width:9px;height:9px;border-radius:50%;background:var(--ok);flex-shrink:0;box-shadow:0 0 0 4px rgba(47,158,110,.14)}
.hero-note strong{display:block;font-size:14px;font-weight:600;color:var(--ink)}
.hero-note em{display:block;font-style:normal;font-size:12.5px;color:var(--ink-sub);line-height:20px}

/* ---------- 服务卡片 ---------- */
.svc-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.svc-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);padding:26px 24px;box-shadow:var(--shadow-card);transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);display:flex;flex-direction:column;gap:14px}
.svc-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:var(--brand-line)}
.svc-ico{width:44px;height:44px;border-radius:12px;background:var(--brand-soft);color:var(--brand);display:flex;align-items:center;justify-content:center}
.svc-card h3{font-size:18px;line-height:28px;font-weight:600;color:var(--ink)}
.svc-card p{font-size:14.5px;line-height:25px;color:var(--ink-sub)}
.svc-foot{margin-top:auto;padding-top:6px}

/* ---------- 流程 ---------- */
.flow{position:relative}
.flow-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:0;position:relative}
.flow-line{position:absolute;top:22px;left:8%;right:8%;height:2px;background:var(--brand-line);z-index:0}
.flow-step{position:relative;z-index:1;padding:0 14px;text-align:center}
.flow-dot{width:44px;height:44px;margin:0 auto 18px;border-radius:50%;background:#fff;border:2px solid var(--brand);color:var(--brand);font-weight:700;display:flex;align-items:center;justify-content:center;box-shadow:0 6px 18px -10px rgba(29,111,184,.6)}
.flow-step h3{font-size:16px;line-height:26px;font-weight:600;margin-bottom:8px}
.flow-step p{font-size:14px;line-height:24px;color:var(--ink-sub)}

/* ---------- 安全要点（非对称） ---------- */
.safe-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:40px;align-items:center}
.safe-media{grid-column:span 5}
.safe-media img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--radius-card);border:1px solid var(--line);background:var(--canvas)}
.safe-body{grid-column:span 7}
.safe-list{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;margin-top:26px}
.safe-item{background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);padding:20px;box-shadow:var(--shadow-card);transition:transform .2s var(--ease),box-shadow .2s var(--ease)}
.safe-item:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover)}
.safe-item h3{display:flex;align-items:center;gap:8px;font-size:16px;font-weight:600;margin-bottom:8px}
.safe-item h3 svg{color:var(--ok);flex-shrink:0}
.safe-item p{font-size:14px;line-height:24px;color:var(--ink-sub)}

/* ---------- 数据 ---------- */
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.stat-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);padding:26px 24px;box-shadow:var(--shadow-card);text-align:left}
.stat-num{font-size:34px;line-height:44px;font-weight:700;color:var(--brand);letter-spacing:-.02em}
.stat-label{font-size:13.5px;color:var(--ink-sub);margin-top:6px}

/* ---------- 资讯列表 ---------- */
.news-head-right{display:flex;align-items:center;gap:16px}
.news-lead{display:grid;grid-template-columns:repeat(12,1fr);gap:0;background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-card);transition:transform .2s var(--ease),box-shadow .2s var(--ease);margin-bottom:24px}
.news-lead:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover)}
.news-lead-media{grid-column:span 5;position:relative;background:var(--canvas)}
.news-lead-media img{width:100%;height:100%;min-height:260px;object-fit:cover}
.news-lead-body{grid-column:span 7;padding:30px 32px;display:flex;flex-direction:column;gap:14px}
.news-lead-body h3{font-size:20px;line-height:30px;font-weight:600;color:var(--ink)}
.news-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13px;color:var(--ink-sub)}
.news-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.news-row{display:flex;gap:18px;background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);padding:18px;box-shadow:var(--shadow-card);transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease)}
.news-row:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:var(--brand-line)}
.news-row-media{flex:0 0 132px;border-radius:var(--radius-thumb);overflow:hidden;background:var(--canvas);border:1px solid var(--line)}
.news-row-media img{width:132px;height:88px;object-fit:cover}
.news-row-body{display:flex;flex-direction:column;gap:8px;min-width:0}
.news-row-body h3{font-size:16px;line-height:25px;font-weight:600;color:var(--ink);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-row-body p{font-size:13.5px;line-height:22px;color:var(--ink-sub);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.empty-state{background:#fff;border:1px dashed var(--brand-line);border-radius:var(--radius-card);padding:56px 24px;text-align:center;display:flex;flex-direction:column;align-items:center;gap:14px;color:var(--ink-sub)}
.empty-state svg{color:var(--brand-line)}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:900px;margin:0 auto;background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:var(--shadow-card);overflow:hidden}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:last-child{border-bottom:0}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;padding:22px 26px;text-align:left;font-size:16px;line-height:26px;font-weight:600;color:var(--ink);transition:background-color .18s var(--ease)}
.faq-q:hover{background:var(--canvas)}
.faq-icon{flex-shrink:0;width:22px;height:22px;border-radius:50%;background:var(--brand-soft);color:var(--brand);display:flex;align-items:center;justify-content:center;transition:transform .22s var(--ease),background-color .22s var(--ease)}
.faq-item.open .faq-icon{transform:rotate(180deg);background:var(--brand);color:#fff}
.faq-a{max-height:0;overflow:hidden;transition:max-height .24s var(--ease)}
.faq-a p{padding:0 26px 22px;font-size:15px;line-height:27px;color:var(--ink-sub)}

/* ---------- CTA ---------- */
.cta-band{background:var(--brand-soft);border:1px solid var(--brand-line);border-radius:var(--radius-card);padding:40px 44px;display:flex;align-items:center;justify-content:space-between;gap:32px}
.cta-band h2{font-size:24px;line-height:34px;font-weight:700;color:var(--ink)}
.cta-band p{margin-top:8px;font-size:15px;line-height:26px;color:var(--ink-sub)}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-deep);color:#D7E5F1;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:32px;padding:64px 0 44px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-mark{background:rgba(255,255,255,.14)}
.footer-brand strong{font-size:16px;color:#fff;font-weight:700}
.footer-desc{font-size:14px;line-height:26px;color:#B9CFE2;margin-bottom:18px}
.footer-contact{font-size:14px;line-height:26px;color:#B9CFE2}
.footer-contact strong{color:#fff;font-weight:600}
.footer-col h4{font-size:14px;font-weight:600;color:#fff;margin-bottom:16px;letter-spacing:.04em}
.footer-col li{margin-bottom:10px}
.footer-col a{font-size:14px;color:#B9CFE2;transition:color .18s var(--ease)}
.footer-col a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px}
.footer-sub p{font-size:14px;line-height:26px;color:#B9CFE2;margin-bottom:14px}
.footer-form{display:flex;gap:8px;flex-wrap:wrap}
.footer-form input{flex:1 1 160px;height:44px;padding:0 14px;border-radius:var(--radius-field);border:1px solid rgba(255,255,255,.24);background:rgba(255,255,255,.08);color:#fff;font-size:14px}
.footer-form input::placeholder{color:#9FBBD2}
.footer-form input:focus{outline:none;border-color:#fff;box-shadow:0 0 0 3px rgba(255,255,255,.16)}
.footer-form button{height:44px;padding:0 20px;border-radius:var(--radius-field);background:var(--accent);color:#fff;font-size:14px;font-weight:600;transition:background-color .18s var(--ease)}
.footer-form button:hover{background:var(--accent-deep)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.14);padding:20px 0;display:flex;flex-wrap:wrap;gap:10px 24px;align-items:center;justify-content:space-between;font-size:13px;color:#9FBBD2}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important}
  .svc-card:hover,.news-row:hover,.news-lead:hover,.safe-item:hover,.btn:hover{transform:none}
}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .nav-links{display:none}
  .nav-search input{width:200px}
  .hero-grid{gap:32px}
  .hero-copy,.hero-media{grid-column:span 12}
  .hero-title{font-size:32px;line-height:44px}
  .svc-grid{grid-template-columns:repeat(2,1fr)}
  .flow-grid{grid-template-columns:repeat(2,1fr);gap:32px 0}
  .flow-line{display:none}
  .safe-media,.safe-body{grid-column:span 12}
  .stat-grid{grid-template-columns:repeat(2,1fr)}
  .news-lead-media,.news-lead-body{grid-column:span 12}
  .news-lead-body{padding:24px}
  .footer-grid{grid-template-columns:repeat(2,1fr);gap:36px}
}
@media (max-width:767px){
  .container{padding:0 20px}
  .nav-top{height:64px;gap:12px}
  .nav-search{display:none}
  .nav-burger{display:flex}
  .section{padding:56px 0}
  .hero{padding:40px 0 52px}
  .hero-title{font-size:28px;line-height:38px}
  .hero-cta .btn{flex:1 1 auto}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px;margin-bottom:28px}
  .sec-title{font-size:22px;line-height:30px}
  .svc-grid{grid-template-columns:1fr}
  .flow-grid{grid-template-columns:1fr;gap:24px}
  .flow-step{padding:0}
  .flow-dot{margin-bottom:12px}
  .safe-list{grid-template-columns:1fr}
  .stat-grid{grid-template-columns:1fr 1fr}
  .news-grid{grid-template-columns:1fr}
  .news-row-media{flex:0 0 104px}
  .news-row-media img{width:104px;height:74px}
  .cta-band{flex-direction:column;align-items:flex-start;padding:28px 24px;gap:20px}
  .footer-grid{grid-template-columns:1fr;gap:30px;padding:48px 0 32px}
  .footer-form button{width:100%}
}
@media (max-width:519px){
  body{font-size:16px;line-height:28px}
  .stat-grid{grid-template-columns:1fr}
  .news-row{flex-direction:column}
  .news-row-media{flex:none}
  .news-row-media img{width:100%;height:170px}
  .brand-name{font-size:15px}
  .brand-sub{font-size:11px}
}

/* roulang page: article */
:root{
  --brand:#1D6FB8;
  --brand-deep:#14507F;
  --brand-soft:#E8F1F8;
  --brand-line:#C6DDF0;
  --accent:#E08A3C;
  --accent-soft:#FDF3E7;
  --ink:#1F2937;
  --ink-sub:#5B6B7C;
  --line:#E3E9F0;
  --canvas:#F6F8FB;
  --white:#ffffff;
  --success:#2F9E6E;
  --warn:#C2410C;
  --font-sans:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  --font-num:Inter,"DIN Alternate",sans-serif;
  --r-card:16px;
  --r-thumb:12px;
  --r-field:10px;
  --r-chip:999px;
  --sh-card:0 1px 2px rgba(16,42,67,.05), 0 10px 30px -18px rgba(16,66,110,.28);
  --sh-card-hover:0 2px 4px rgba(16,42,67,.06), 0 18px 40px -20px rgba(16,66,110,.36);
  --sh-nav:0 1px 0 #E3E9F0;
  --space-section:88px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:128px;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:17px;
  line-height:1.76;
  color:var(--ink);
  background:var(--canvas);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
ul,ol{margin:0;padding:0}
button,input{font-family:inherit;font-size:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px}
.font-num{font-family:var(--font-num);font-variant-numeric:tabular-nums}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--brand);color:#fff;padding:10px 16px;border-radius:0 0 10px 0;z-index:100}
.skip-link:focus{left:0}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:50;background:#fff;box-shadow:var(--sh-nav)}
.header-top-inner{display:flex;align-items:center;gap:20px;height:72px}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:18px;color:var(--brand-deep);letter-spacing:-.01em}
.brand-mark{width:36px;height:36px;border-radius:10px;background:linear-gradient(90deg,var(--brand),var(--brand-deep));color:#fff;display:grid;place-items:center;flex:0 0 auto}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-mini{display:none}
.brand-mini strong{font-size:16px}
.brand-mini em{font-style:normal;font-size:11px;font-weight:500;color:var(--ink-sub);letter-spacing:.06em}
.header-actions{display:flex;align-items:center;gap:12px;margin-left:auto}
.search-field{display:flex;align-items:center;gap:8px;height:40px;width:262px;padding:0 14px;border-radius:var(--r-chip);background:var(--canvas);border:1px solid transparent;transition:background .2s ease-out,border-color .2s ease-out,box-shadow .2s ease-out}
.search-field svg{color:var(--ink-sub);flex:0 0 auto}
.search-field:focus-within{background:#fff;border-color:var(--brand);box-shadow:0 0 0 3px var(--brand-soft)}
.search-field input{flex:1;min-width:0;border:0;background:transparent;outline:none;font-size:14px;color:var(--ink)}
.search-field input::placeholder{color:#9AA9B8}
.menu-toggle{display:none;width:42px;height:42px;border-radius:var(--r-field);border:1px solid var(--line);background:#fff;color:var(--ink);align-items:center;justify-content:center;cursor:pointer}
.menu-toggle:hover{background:var(--brand-soft);border-color:var(--brand-line)}
.header-nav{border-top:1px solid var(--line);background:#fff}
.nav-scroll-wrap{position:relative}
.nav-scroll-wrap::before,
.nav-scroll-wrap::after{content:"";position:absolute;top:0;bottom:0;width:26px;pointer-events:none;z-index:2}
.nav-scroll-wrap::before{left:0;background:linear-gradient(90deg,#fff,rgba(255,255,255,0))}
.nav-scroll-wrap::after{right:0;background:linear-gradient(270deg,#fff,rgba(255,255,255,0))}
.nav-scroll{overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none}
.nav-scroll::-webkit-scrollbar{display:none}
.nav-links{display:flex;align-items:center;gap:8px;height:50px;min-width:max-content;padding:0 26px}
.nav-link{display:inline-flex;align-items:center;height:34px;padding:0 16px;border-radius:var(--r-chip);font-size:15px;color:var(--ink-sub);border:1px solid transparent;transition:background .2s ease-out,color .2s ease-out,border-color .2s ease-out}
.nav-link:hover{background:var(--canvas);color:var(--brand-deep)}
.nav-link.active{background:var(--brand-soft);color:var(--brand-deep);font-weight:600;border-color:var(--brand-line);box-shadow:inset 0 -2px 0 0 var(--brand)}
.mobile-panel{display:none;border-top:1px solid var(--line);background:#fff;padding:16px 0 20px}
.mobile-panel .mobile-search{margin-bottom:16px}
.mobile-panel .mobile-links{display:grid;gap:6px}
.mobile-panel .mobile-links a{padding:12px 14px;border-radius:var(--r-field);background:var(--canvas);font-size:15px}
.mobile-panel .mobile-links a.active{background:var(--brand-soft);color:var(--brand-deep);font-weight:600}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--r-field);
  font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:transform .2s ease-out,box-shadow .2s ease-out,background-color .2s ease-out,color .2s ease-out,border-color .2s ease-out;
  white-space:nowrap;
}
.btn-accent{background:var(--accent);color:#fff}
.btn-accent:hover{background:#cf7a2d;transform:translateY(-1px);box-shadow:var(--sh-card-hover)}
.btn-accent:active{transform:translateY(0);box-shadow:none}
.btn-brand{background:var(--brand);color:#fff}
.btn-brand:hover{background:var(--brand-deep);transform:translateY(-1px);box-shadow:var(--sh-card-hover)}
.btn-brand:active{transform:translateY(0);box-shadow:none}
.btn-ghost{background:#fff;border-color:var(--line);color:var(--ink)}
.btn-ghost:hover{background:var(--brand-soft);border-color:var(--brand-line);color:var(--brand-deep)}
.btn-sm{height:38px;padding:0 16px;font-size:14px}
.btn[disabled]{background:var(--canvas);color:var(--ink-sub);opacity:.6;cursor:not-allowed;box-shadow:none;transform:none}
.text-link{display:inline-flex;align-items:center;gap:6px;color:var(--brand);font-weight:600;font-size:15px}
.text-link svg{transition:transform .2s ease-out}
.text-link:hover svg{transform:translateX(3px)}

/* ---------- article hero ---------- */
.article-hero{position:relative;background:#fff;border-bottom:1px solid var(--line);padding:34px 0 44px;overflow:hidden}
.article-hero::before{content:"";position:absolute;inset:0;background:url('/assets/images/backpic/back-1.webp') center/cover no-repeat;opacity:.10;pointer-events:none}
.article-hero > .container{position:relative;z-index:1}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-sub);margin-bottom:16px}
.breadcrumb a{transition:color .2s ease-out}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .sep{color:var(--brand-line)}
.breadcrumb .current{color:var(--ink);max-width:300px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.article-title{font-size:40px;line-height:1.22;font-weight:700;letter-spacing:-.01em;margin:0 0 20px;max-width:900px;color:var(--ink)}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:12px 18px;font-size:14px;color:var(--ink-sub)}
.badge{display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--r-chip);background:var(--brand-soft);color:var(--brand-deep);font-size:13px;font-weight:600}
.badge-accent{background:var(--accent-soft);color:#A9631F}
.meta-dot{width:4px;height:4px;border-radius:50%;background:var(--brand-line);display:inline-block}

/* ---------- article layout ---------- */
.article-wrap{padding:56px 0 80px}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 268px;gap:56px;align-items:start}
.article-body{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:44px 46px;box-shadow:var(--sh-card);
  font-size:17px;line-height:2;color:var(--ink);
}
.article-body > *:first-child{margin-top:0}
.article-body p{margin:0 0 20px;line-height:2}
.article-body h2{font-size:24px;line-height:1.44;font-weight:700;margin:42px 0 16px;padding-left:14px;border-left:4px solid var(--brand)}
.article-body h3{font-size:20px;line-height:1.5;font-weight:600;margin:30px 0 12px}
.article-body h4{font-size:17px;font-weight:600;margin:24px 0 10px}
.article-body ul,.article-body ol{padding-left:24px;margin:0 0 20px}
.article-body li{margin-bottom:10px;line-height:1.9}
.article-body ul li::marker{color:var(--brand);font-size:1.05em}
.article-body ol li::marker{color:var(--brand);font-weight:600}
.article-body blockquote{
  margin:26px 0;background:var(--canvas);border-left:4px solid var(--brand);
  padding:20px 24px;border-radius:0 var(--r-thumb) var(--r-thumb) 0;
  color:var(--ink-sub);font-size:15px;line-height:1.9;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:var(--r-thumb);margin:26px auto}
.article-body figure{margin:26px 0}
.article-body figcaption{text-align:center;font-size:13px;color:var(--ink-sub);margin-top:10px}
.article-body a{color:var(--brand);text-decoration:underline;text-underline-offset:3px}
.article-body a:hover{color:var(--brand-deep)}
.article-body table{width:100%;border-collapse:collapse;margin:26px 0;font-size:15px;border:1px solid var(--line);border-radius:var(--r-thumb);overflow:hidden}
.article-body th{background:var(--canvas);font-weight:600;text-align:left;color:var(--ink)}
.article-body th,.article-body td{border:1px solid var(--line);padding:13px 16px;line-height:1.7}
.article-body code{background:var(--canvas);border:1px solid var(--line);border-radius:6px;padding:1px 7px;font-size:14px;font-family:var(--font-num)}
.empty-state{text-align:center;padding:48px 20px;border:1px dashed var(--brand-line);border-radius:var(--r-card);background:var(--canvas)}
.empty-state svg{color:var(--brand-line);margin:0 auto 16px}
.empty-state h2{font-size:20px;font-weight:600;margin:0 0 8px;border:0;padding:0}
.empty-state p{color:var(--ink-sub);font-size:15px;margin:0 0 20px}

/* ---------- tags & back ---------- */
.tag-row{display:flex;flex-wrap:wrap;gap:10px;padding:26px 0 22px;border-bottom:1px solid var(--line);margin-top:8px}
.tag{display:inline-flex;align-items:center;height:30px;padding:0 14px;border-radius:var(--r-chip);background:#fff;border:1px solid var(--line);color:var(--ink-sub);font-size:13px;transition:border-color .2s ease-out,color .2s ease-out,background-color .2s ease-out}
.tag:hover{border-color:var(--brand-line);background:var(--brand-soft);color:var(--brand-deep)}
.back-row{display:flex;justify-content:center;padding:28px 0 4px}

/* ---------- related ---------- */
.section-block{margin-top:56px}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:24px}
.section-head h2{font-size:26px;line-height:1.35;font-weight:700;margin:0}
.section-head .eyebrow{display:block;font-size:12px;letter-spacing:.08em;color:var(--ink-sub);margin-bottom:6px;text-transform:uppercase}
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.post-card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-card);transition:transform .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out}
.post-card:hover{transform:translateY(-2px);box-shadow:var(--sh-card-hover);border-color:var(--brand-line)}
.post-thumb{aspect-ratio:16/9;background:var(--canvas);border-bottom:1px solid var(--line);overflow:hidden}
.post-thumb img{width:100%;height:100%;object-fit:cover}
.post-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.post-body h3{font-size:18px;line-height:1.5;font-weight:600;margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-body p{margin:0;font-size:14px;line-height:1.72;color:var(--ink-sub);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-meta{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--ink-sub);margin-top:auto}

/* ---------- post nav ---------- */
.post-nav{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;margin-top:32px}
.post-nav a{display:flex;flex-direction:column;gap:8px;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:20px 22px;box-shadow:var(--sh-card);transition:transform .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out}
.post-nav a:hover{transform:translateY(-2px);box-shadow:var(--sh-card-hover);border-color:var(--brand-line)}
.post-nav .dir{font-size:12px;letter-spacing:.08em;color:var(--ink-sub)}
.post-nav .t{font-size:16px;font-weight:600;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-nav .arrow{color:var(--brand)}

/* ---------- aside ---------- */
.article-aside{position:sticky;top:104px;display:grid;gap:20px}
.side-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:22px;box-shadow:var(--sh-card)}
.side-card h3{font-size:15px;font-weight:700;margin:0 0 14px;color:var(--ink)}
.side-nav{display:grid;gap:4px}
.side-nav a{display:flex;align-items:center;gap:10px;padding:9px 12px;border-radius:var(--r-field);font-size:14px;color:var(--ink-sub);border-left:2px solid transparent;transition:background-color .2s ease-out,color .2s ease-out,border-color .2s ease-out}
.side-nav a:hover{background:var(--brand-soft);color:var(--brand-deep);border-left-color:var(--brand)}
.side-card p{font-size:14px;line-height:1.85;color:var(--ink-sub);margin:0 0 16px}
.side-tip{background:var(--accent-soft);border:1px dashed #F0CFAA;border-radius:var(--r-card);padding:18px 20px}
.side-tip strong{display:block;font-size:14px;color:#A9631F;margin-bottom:6px}
.side-tip span{font-size:13px;line-height:1.8;color:var(--ink-sub)}

/* ---------- faq ---------- */
.faq-section{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:72px 0}
.faq-list{display:grid;gap:12px;max-width:900px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--r-thumb);overflow:hidden;transition:border-color .2s ease-out,box-shadow .2s ease-out}
.faq-item[open]{border-color:var(--brand-line);box-shadow:var(--sh-card)}
.faq-item summary{list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:18px 22px;font-size:16px;font-weight:600;line-height:1.6;color:var(--ink)}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--brand-deep)}
.faq-icon{flex:0 0 auto;width:26px;height:26px;border-radius:50%;background:var(--brand-soft);color:var(--brand-deep);display:grid;place-items:center;transition:transform .18s ease-out,background-color .18s ease-out}
.faq-item[open] .faq-icon{transform:rotate(180deg);background:var(--accent);color:#fff}
.faq-answer{padding:0 22px 20px;font-size:15px;line-height:1.9;color:var(--ink-sub)}
.faq-answer p{margin:0 0 12px}
.faq-answer p:last-child{margin-bottom:0}

/* ---------- cta ---------- */
.cta-section{padding:64px 0 80px}
.cta-band{display:flex;align-items:center;justify-content:space-between;gap:28px;background:var(--brand-soft);border:1px solid var(--brand-line);border-radius:var(--r-card);padding:30px 34px}
.cta-band h2{font-size:22px;font-weight:700;margin:0 0 8px;color:var(--brand-deep)}
.cta-band p{margin:0;font-size:15px;color:var(--ink-sub);line-height:1.8}
.cta-band .cta-actions{display:flex;gap:12px;flex:0 0 auto}

/* ---------- footer ---------- */
.site-footer{background:var(--brand-deep);color:rgba(255,255,255,.78);padding:56px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1.5fr;gap:32px;padding-bottom:40px}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:17px;font-weight:700;margin-bottom:14px}
.footer-brand .brand-mark{background:rgba(255,255,255,.14);color:#fff}
.footer-desc{font-size:14px;line-height:1.9;color:rgba(255,255,255,.74);margin:0 0 14px}
.footer-contact{font-size:13px;line-height:2;color:rgba(255,255,255,.66);margin:0}
.footer-contact strong{color:#fff;font-weight:600}
.footer-col h4{color:#fff;font-size:15px;font-weight:600;margin:0 0 16px}
.footer-col ul{list-style:none;display:grid;gap:10px}
.footer-col a{color:rgba(255,255,255,.76);font-size:14px;transition:color .2s ease-out}
.footer-col a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px}
.footer-sub p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.74);margin:0 0 14px}
.footer-form{display:flex;gap:8px}
.footer-form input{flex:1;min-width:0;height:44px;padding:0 14px;border-radius:var(--r-field);border:1px solid rgba(255,255,255,.26);background:rgba(255,255,255,.08);color:#fff;outline:none;font-size:14px;transition:border-color .2s ease-out,background-color .2s ease-out}
.footer-form input::placeholder{color:rgba(255,255,255,.52)}
.footer-form input:focus{border-color:#fff;background:rgba(255,255,255,.16)}
.footer-form button{height:44px;padding:0 18px;border:0;border-radius:var(--r-field);background:var(--accent);color:#fff;font-size:14px;font-weight:600;cursor:pointer;transition:background-color .2s ease-out,transform .2s ease-out}
.footer-form button:hover{background:#cf7a2d;transform:translateY(-1px)}
.footer-bottom{display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;border-top:1px solid rgba(255,255,255,.16);padding:18px 0;font-size:13px;color:rgba(255,255,255,.62)}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .article-layout{grid-template-columns:minmax(0,1fr);gap:40px}
  .article-aside{display:none}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .article-body{padding:34px 30px}
}
@media (max-width:900px){
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:768px){
  .container{padding:0 20px}
  :root{--space-section:60px}
  .header-top-inner{height:64px;gap:12px}
  .search-field{display:none}
  .menu-toggle{display:inline-flex}
  .mobile-panel.open{display:block}
  .article-title{font-size:30px;line-height:1.28}
  .article-hero{padding:26px 0 34px}
  .article-wrap{padding:36px 0 56px}
  .article-body{font-size:16px;line-height:1.9;padding:26px 20px;border-radius:var(--r-thumb)}
  .article-body h2{font-size:21px}
  .article-body h3{font-size:18px}
  .post-nav{grid-template-columns:minmax(0,1fr)}
  .cta-band{flex-direction:column;align-items:flex-start;padding:24px 22px}
  .cta-band .cta-actions{width:100%;flex-direction:column}
  .cta-band .cta-actions .btn{width:100%}
  .faq-section{padding:52px 0}
  .section-head h2{font-size:22px}
  .footer-bottom{flex-direction:column;gap:6px}
}
@media (max-width:640px){
  .brand-full{display:none}
  .brand-mini{display:flex;flex-direction:column}
  .related-grid{grid-template-columns:minmax(0,1fr)}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-form{flex-direction:column}
  .footer-form button{width:100%}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important}
}

/* roulang page: category1 */
:root{
  --brand:#1D6FB8;
  --brand-deep:#14507F;
  --brand-soft:#E8F1F8;
  --brand-line:#C6DDF0;
  --accent:#E08A3C;
  --accent-deep:#C9762A;
  --accent-soft:#FDF3E7;
  --ink:#1F2937;
  --ink-sub:#5B6B7C;
  --line:#E3E9F0;
  --canvas:#F6F8FB;
  --white:#FFFFFF;
  --success:#2F9E6E;
  --warn:#C2410C;
  --radius-card:16px;
  --radius-media:12px;
  --radius-field:10px;
  --radius-chip:999px;
  --shadow-card:0 1px 2px rgba(16,42,67,.05), 0 10px 30px -18px rgba(16,66,110,.28);
  --shadow-card-hover:0 2px 4px rgba(16,42,67,.06), 0 18px 40px -20px rgba(16,66,110,.36);
  --shadow-nav:0 1px 0 #E3E9F0;
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;scroll-padding-top:104px;}
html body{
  margin:0;
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:17px;
  line-height:1.76;
  color:var(--ink);
  background:var(--canvas);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{display:block;max-width:100%;height:auto;}
a{color:inherit;text-decoration:none;}
button{font:inherit;cursor:pointer;}
ul,ol{margin:0;padding:0;list-style:none;}
figure{margin:0;}
h1,h2,h3,h4,p{margin:0;}
.font-num{font-family:Inter,"DIN Alternate",ui-sans-serif,sans-serif;font-variant-numeric:tabular-nums;}
div.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;}

/* ---------- 顶部导航 ---------- */
.site-header{position:sticky;top:0;z-index:60;background:#fff;border-bottom:1px solid var(--line);}
.header-inner{display:flex;align-items:center;gap:24px;min-height:72px;}
.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.brand-mark{
  width:42px;height:42px;border-radius:12px;display:grid;place-items:center;
  background:var(--brand-soft);border:1px solid var(--brand-line);color:var(--brand);
}
.brand-text strong{display:block;font-size:17px;font-weight:700;letter-spacing:-.01em;line-height:1.25;}
.brand-text small{display:block;font-size:12px;color:var(--ink-sub);letter-spacing:.04em;}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:auto;}
.nav-link{
  display:inline-flex;align-items:center;height:40px;padding:0 16px;border-radius:var(--radius-chip);
  font-size:15px;color:var(--ink-sub);transition:background .2s var(--ease),color .2s var(--ease);
}
.nav-link:hover{background:var(--canvas);color:var(--brand);}
.nav-link.active{background:var(--brand-soft);color:var(--brand-deep);font-weight:600;box-shadow:inset 0 0 0 1px var(--brand-line);}
.header-actions{display:flex;align-items:center;gap:10px;margin-left:8px;}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--line);background:#fff;
  align-items:center;justify-content:center;flex-direction:column;gap:4px;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--ink);}
.mobile-panel{display:none;}
.mobile-panel.is-open{display:grid;gap:6px;padding:12px 20px 18px;border-top:1px solid var(--line);background:#fff;}
.mobile-panel .nav-link{height:44px;border-radius:var(--radius-field);}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:var(--radius-field);border:1px solid transparent;
  font-size:15px;font-weight:600;white-space:nowrap;cursor:pointer;
  transition:transform .2s var(--ease),background .2s var(--ease),color .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.btn-primary{background:var(--accent);color:#fff;box-shadow:var(--shadow-card);}
.btn-primary:hover{background:var(--accent-deep);transform:translateY(-1px);box-shadow:var(--shadow-card-hover);}
.btn-primary:active{transform:translateY(0);box-shadow:none;}
.btn-secondary{background:#fff;border-color:var(--line);color:var(--ink);}
.btn-secondary:hover{background:var(--brand-soft);border-color:var(--brand-line);color:var(--brand-deep);transform:translateY(-1px);}
.btn-text{display:inline-flex;align-items:center;gap:6px;color:var(--brand);font-weight:600;font-size:15px;}
.btn-text svg{transition:transform .2s var(--ease);}
.btn-text:hover svg{transform:translateX(3px);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.btn[disabled],.btn.is-disabled{background:var(--canvas);color:var(--ink-sub);border-color:var(--line);opacity:.6;pointer-events:none;}

/* ---------- 通用板块 ---------- */
.section{padding:84px 0;position:relative;}
.section--white{background:#fff;}
.section--canvas{background:var(--canvas);}
.section-head{max-width:760px;margin-bottom:40px;}
.eyebrow{display:inline-block;font-size:12px;letter-spacing:.08em;color:var(--ink-sub);margin-bottom:10px;}
.section h2{font-size:28px;line-height:1.32;font-weight:700;letter-spacing:-.01em;margin:0 0 12px;}
.section-head p{color:var(--ink-sub);font-size:16px;line-height:1.8;}
.divider{height:1px;background:var(--line);border:0;margin:0;}

/* ---------- 面包屑 ---------- */
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-sub);margin-bottom:16px;}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb .sep{color:var(--brand-line);}
.breadcrumb .current{color:var(--ink);}

/* ---------- Hero ---------- */
.page-hero{
  padding:52px 0 76px;
  background:linear-gradient(180deg,#F6F8FB 0%,#FFFFFF 100%);
  border-bottom:1px solid var(--line);
}
.hero-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;}
.page-hero h1{font-size:40px;line-height:1.2;font-weight:700;letter-spacing:-.01em;margin-bottom:16px;}
.hero-sub{font-size:18px;line-height:1.7;color:var(--ink-sub);max-width:520px;}
.hero-meta{display:flex;flex-wrap:wrap;gap:10px 26px;font-size:14px;color:var(--ink-sub);margin:24px 0 30px;}
.hero-meta b{color:var(--ink);font-weight:600;}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;}
.hero-media{
  position:relative;border-radius:var(--radius-card);overflow:hidden;background:var(--canvas);
  border:1px solid var(--brand-line);box-shadow:var(--shadow-card);aspect-ratio:16/10;
}
.hero-media img{width:100%;height:100%;object-fit:cover;}
.hero-badge{
  position:absolute;right:16px;bottom:16px;background:rgba(255,255,255,.95);border:1px solid var(--line);
  border-radius:var(--radius-media);padding:10px 14px;font-size:13px;color:var(--ink-sub);line-height:1.5;
  box-shadow:var(--shadow-card);max-width:230px;
}
.hero-badge b{display:block;color:var(--ink);font-weight:600;font-size:14px;}

/* ---------- 安全提示条 ---------- */
.notice-band{
  display:grid;grid-template-columns:auto 1fr;gap:16px;align-items:flex-start;
  background:var(--accent-soft);border:1px dashed #F0D3B0;border-radius:var(--radius-card);
  padding:20px 24px;margin-top:-36px;position:relative;z-index:2;
}
.notice-band .notice-icon{
  width:34px;height:34px;border-radius:10px;background:#fff;border:1px solid #F0D3B0;
  display:grid;place-items:center;color:var(--accent-deep);flex:0 0 auto;
}
.notice-band h2{font-size:16px;font-weight:700;margin-bottom:6px;}
.notice-band p{font-size:14px;line-height:1.8;color:var(--ink-sub);}

/* ---------- 准备清单三卡 ---------- */
.prep-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.prep-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);padding:26px;
  box-shadow:var(--shadow-card);transition:transform .2s var(--ease),box-shadow .2s var(--ease);
}
.prep-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-card-hover);}
.prep-top{display:flex;align-items:center;gap:12px;margin-bottom:14px;}
.prep-icon{
  width:40px;height:40px;border-radius:12px;background:var(--brand-soft);border:1px solid var(--brand-line);
  display:grid;place-items:center;color:var(--brand);
}
.prep-tag{font-size:12px;letter-spacing:.06em;color:var(--ink-sub);}
.prep-card h3{font-size:18px;font-weight:600;margin-bottom:10px;}
.prep-card p{font-size:14px;line-height:1.85;color:var(--ink-sub);}

/* ---------- 步骤时间线 ---------- */
.steps{position:relative;display:grid;gap:20px;}
.steps::before{content:"";position:absolute;left:23px;top:26px;bottom:26px;width:2px;background:var(--brand-line);}
.step{display:grid;grid-template-columns:48px 1fr;gap:24px;align-items:start;position:relative;}
.step-index{
  width:48px;height:48px;border-radius:var(--radius-chip);background:#fff;border:2px solid var(--brand);
  color:var(--brand);display:grid;place-items:center;font-weight:700;font-size:16px;position:relative;z-index:1;
}
.step-body{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);padding:22px 24px;
  box-shadow:var(--shadow-card);transition:transform .2s var(--ease),box-shadow .2s var(--ease);
}
.step-body:hover{transform:translateY(-2px);box-shadow:var(--shadow-card-hover);}
.step-body h3{font-size:19px;font-weight:600;margin-bottom:10px;}
.step-body p{font-size:15px;line-height:1.85;color:var(--ink-sub);}
.step-body .step-tip{
  display:inline-flex;align-items:center;gap:8px;margin-top:14px;padding:6px 12px;font-size:13px;
  background:var(--brand-soft);color:var(--brand-deep);border-radius:var(--radius-chip);
}

/* ---------- 情况处理列表 ---------- */
.situation-list{display:grid;grid-template-columns:repeat(2,1fr);gap:0 48px;}
.situation-item{padding:22px 0;border-bottom:1px solid var(--line);}
.situation-item h3{position:relative;font-size:17px;font-weight:600;padding-left:14px;margin-bottom:8px;}
.situation-item h3::before{content:"";position:absolute;left:0;top:7px;width:4px;height:14px;border-radius:2px;background:var(--accent);}
.situation-item p{font-size:14px;line-height:1.85;color:var(--ink-sub);}

/* ---------- 交替图文 ---------- */
.split-row{display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:center;}
.split-row + .split-row{margin-top:60px;}
.split-media{
  border-radius:var(--radius-card);overflow:hidden;border:1px solid var(--line);background:var(--canvas);
  box-shadow:var(--shadow-card);aspect-ratio:4/3;
}
.split-media img{width:100%;height:100%;object-fit:cover;}
.split-row.reverse .split-media{order:-1;}
.split-copy h3{font-size:22px;font-weight:700;letter-spacing:-.01em;margin-bottom:14px;}
.split-copy p{font-size:15px;line-height:1.9;color:var(--ink-sub);margin-bottom:14px;}
.tick-list{display:grid;gap:12px;margin-top:20px;}
.tick-list li{position:relative;padding-left:28px;font-size:15px;color:var(--ink-sub);line-height:1.7;}
.tick-list li::before{
  content:"";position:absolute;left:0;top:5px;width:16px;height:16px;border-radius:999px;
  background:var(--brand-soft);border:1px solid var(--brand-line);
}
.tick-list li::after{
  content:"";position:absolute;left:5.5px;top:9px;width:4px;height:8px;
  border-right:2px solid var(--brand);border-bottom:2px solid var(--brand);transform:rotate(42deg);
}

/* ---------- 数据卡 ---------- */
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.stat-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);padding:26px 24px;
  box-shadow:var(--shadow-card);transition:transform .2s var(--ease),box-shadow .2s var(--ease);
}
.stat-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-card-hover);}
.stat-value{font-size:32px;line-height:1.15;font-weight:700;color:var(--brand);letter-spacing:-.02em;}
.stat-value small{font-size:15px;font-weight:600;margin-left:4px;color:var(--brand-deep);}
.stat-label{margin-top:10px;font-size:13px;color:var(--ink-sub);line-height:1.7;}

/* ---------- 公告列表 ---------- */
.notice-list{display:grid;border-top:1px solid var(--line);}
.notice-row{
  display:grid;grid-template-columns:112px 1fr auto;gap:24px;align-items:center;
  padding:20px 4px;border-bottom:1px solid var(--line);transition:background .2s var(--ease);
}
.notice-row:hover{background:#fff;}
.notice-date{font-size:13px;color:var(--ink-sub);}
.notice-row h3{font-size:16px;font-weight:600;margin-bottom:4px;}
.notice-row p{font-size:14px;color:var(--ink-sub);line-height:1.7;}
.notice-chip{
  font-size:12px;padding:5px 12px;border-radius:var(--radius-chip);background:var(--brand-soft);
  color:var(--brand-deep);border:1px solid var(--brand-line);white-space:nowrap;
}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:12px;}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden;transition:border-color .2s var(--ease);}
.faq-item[open]{border-color:var(--brand-line);}
.faq-item summary{
  list-style:none;cursor:pointer;padding:20px 24px;display:flex;align-items:flex-start;gap:16px;
  justify-content:space-between;font-size:16px;font-weight:600;line-height:1.6;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--brand-deep);}
.faq-icon{position:relative;width:18px;height:18px;flex:0 0 18px;margin-top:4px;}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--brand);border-radius:2px;transition:transform .18s var(--ease);
}
.faq-icon::before{left:0;right:0;top:8px;height:2px;}
.faq-icon::after{top:0;bottom:0;left:8px;width:2px;}
.faq-item[open] .faq-icon::after{transform:scaleY(0);}
.faq-body{padding:0 24px 22px;font-size:15px;line-height:1.9;color:var(--ink-sub);max-width:860px;}

/* ---------- CTA ---------- */
.cta-band{
  background:var(--brand-soft);border:1px solid var(--brand-line);border-radius:20px;
  padding:36px 40px;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
}
.cta-band h2{font-size:24px;font-weight:700;letter-spacing:-.01em;margin-bottom:8px;}
.cta-band p{font-size:15px;color:var(--ink-sub);line-height:1.8;max-width:620px;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-deep);color:#D6E5F2;padding:64px 0 28px;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.5fr;gap:32px;}
.footer-brand{display:flex;align-items:center;gap:12px;color:#fff;margin-bottom:16px;}
.footer-brand strong{font-size:16px;font-weight:700;line-height:1.4;}
.site-footer .brand-mark{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.2);color:#fff;}
.footer-desc{font-size:14px;line-height:1.85;color:#A9C5DE;margin-bottom:16px;}
.footer-contact{font-size:13px;line-height:2;color:#A9C5DE;}
.footer-contact strong{color:#fff;font-weight:600;}
.footer-col h4{color:#fff;font-size:14px;font-weight:700;margin-bottom:16px;letter-spacing:.04em;}
.footer-col ul{display:grid;gap:10px;}
.footer-col a{font-size:14px;color:#C3D8EA;transition:color .2s var(--ease);}
.footer-col a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px;}
.footer-sub p{font-size:14px;line-height:1.8;color:#A9C5DE;margin-bottom:14px;}
.footer-form{display:flex;gap:10px;}
.footer-form input{
  flex:1;min-width:0;height:44px;border-radius:var(--radius-field);padding:0 14px;font-size:14px;
  border:1px solid rgba(255,255,255,.2);background:rgba(255,255,255,.08);color:#fff;
}
.footer-form input::placeholder{color:#8FAFCC;}
.footer-form input:focus{outline:2px solid #8CC0EA;outline-offset:1px;}
.footer-form button{
  height:44px;padding:0 18px;border-radius:var(--radius-field);border:0;background:var(--accent);
  color:#fff;font-size:14px;font-weight:600;transition:background .2s var(--ease);
}
.footer-form button:hover{background:var(--accent-deep);}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.14);margin-top:48px;padding-top:22px;
  display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;font-size:13px;color:#9FBBD6;
}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .hero-grid{grid-template-columns:1fr;gap:36px;}
  .page-hero h1{font-size:34px;}
  .prep-grid{grid-template-columns:repeat(2,1fr);}
  .stat-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
  .split-row{gap:36px;}
}
@media (max-width:860px){
  .nav-links{display:none;}
  .nav-toggle{display:flex;}
  .header-actions{margin-left:auto;}
  .header-inner{gap:16px;}
  .section{padding:60px 0;}
  .section h2{font-size:23px;}
  .split-row{grid-template-columns:1fr;gap:24px;}
  .split-row.reverse .split-media{order:0;}
}
@media (max-width:640px){
  html body{font-size:16px;line-height:1.72;}
  div.container{padding:0 20px;}
  .brand-text strong{font-size:15px;}
  .brand-text small{font-size:11px;}
  .page-hero{padding:36px 0 60px;}
  .page-hero h1{font-size:30px;}
  .hero-sub{font-size:16px;}
  .hero-cta{flex-direction:column;align-items:stretch;}
  .hero-cta .btn{width:100%;}
  .notice-band{grid-template-columns:1fr;padding:18px 20px;}
  .prep-grid{grid-template-columns:1fr;}
  .situation-list{grid-template-columns:1fr;gap:0;}
  .stat-grid{grid-template-columns:1fr;}
  .steps::before{left:19px;}
  .step{grid-template-columns:40px 1fr;gap:16px;}
  .step-index{width:40px;height:40px;font-size:15px;}
  .notice-row{grid-template-columns:1fr;gap:8px;}
  .cta-band{padding:26px 22px;}
  .cta-band .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-form{flex-direction:column;}
  .footer-form button{width:100%;}
  .faq-item summary{padding:18px;font-size:15px;}
  .faq-body{padding:0 18px 20px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition-duration:.01ms !important;animation-duration:.01ms !important;scroll-behavior:auto !important;}
  .prep-card:hover,.step-body:hover,.stat-card:hover{transform:none;}
}

/* roulang page: category2 */
:root{
  --brand:#1D6FB8;
  --brand-deep:#14507F;
  --brand-soft:#E8F1F8;
  --brand-line:#C6DDF0;
  --accent:#E08A3C;
  --accent-deep:#C9752A;
  --accent-soft:#FDF3E7;
  --ink:#1F2937;
  --ink-sub:#5B6B7C;
  --line:#E3E9F0;
  --canvas:#F6F8FB;
  --white:#FFFFFF;
  --ok:#2F9E6E;
  --warn:#C2410C;
  --radius-card:16px;
  --radius-img:12px;
  --radius-field:10px;
  --radius-chip:999px;
  --shadow-card:0 1px 2px rgba(16,42,67,.05),0 10px 30px -18px rgba(16,66,110,.28);
  --shadow-card-hover:0 2px 4px rgba(16,42,67,.06),0 18px 40px -20px rgba(16,66,110,.36);
  --shadow-nav:0 1px 0 #E3E9F0;
  --font-sans:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  --font-num:Inter,"DIN Alternate","PingFang SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:132px}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:17px;
  line-height:30px;
  color:var(--ink);
  background:var(--canvas);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input{font:inherit}
ul,ol{margin:0;padding:0;list-style:none}
p{margin:0}
.font-num{font-family:var(--font-num);font-variant-numeric:tabular-nums}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
.skip-link{position:absolute;left:-9999px;top:0;background:#fff;color:var(--brand-deep);padding:10px 16px;border-radius:10px;z-index:200;box-shadow:var(--shadow-card)}
.skip-link:focus{left:16px;top:16px}

/* ---------- Header ---------- */
.site-header{position:sticky;top:0;z-index:50;background:#fff;transition:box-shadow .2s ease-out}
.site-header.is-stuck{box-shadow:var(--shadow-nav)}
.nav-top-inner{display:flex;align-items:center;gap:20px;min-height:72px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{width:38px;height:38px;border-radius:11px;background:var(--brand-soft);color:var(--brand);display:flex;align-items:center;justify-content:center;flex:0 0 auto}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-text strong{font-size:17px;font-weight:700;letter-spacing:-.01em;color:var(--ink)}
.brand-text em{font-style:normal;font-size:12px;color:var(--ink-sub);letter-spacing:.02em}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:8px}
.nav-link{display:block;padding:8px 13px;border-radius:10px;font-size:15px;color:var(--ink-sub);transition:background .18s ease-out,color .18s ease-out}
.nav-link:hover{background:var(--canvas);color:var(--ink)}
.nav-link.active{background:var(--brand-soft);color:var(--brand-deep);font-weight:600}
.nav-link:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.nav-tools{display:flex;align-items:center;gap:12px;margin-left:auto}
.nav-search{position:relative;display:flex;align-items:center}
.nav-search svg{position:absolute;left:13px;color:var(--ink-sub);pointer-events:none}
.nav-search input{
  width:240px;height:42px;padding:0 16px 0 38px;border-radius:var(--radius-chip);
  border:1px solid transparent;background:var(--canvas);color:var(--ink);
  font-size:14px;transition:border-color .18s ease-out,box-shadow .18s ease-out,background .18s ease-out;
}
.nav-search input::placeholder{color:#93A3B4}
.nav-search input:focus{outline:none;background:#fff;border-color:var(--brand);box-shadow:0 0 0 3px var(--brand-soft)}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:10px;border:1px solid var(--line);
  background:#fff;color:var(--ink);align-items:center;justify-content:center;cursor:pointer;
  transition:background .18s ease-out,border-color .18s ease-out;
}
.nav-toggle:hover{background:var(--brand-soft);border-color:var(--brand-line)}
.nav-toggle:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.nav-channels{border-top:1px solid var(--line);background:#fff}
.channel-wrap{position:relative}
.channel-wrap::before,
.channel-wrap::after{content:"";position:absolute;top:0;bottom:0;width:24px;pointer-events:none;z-index:2}
.channel-wrap::before{left:0;background:linear-gradient(90deg,#fff,rgba(255,255,255,0))}
.channel-wrap::after{right:0;background:linear-gradient(270deg,#fff,rgba(255,255,255,0))}
.channel-scroll{display:flex;gap:8px;align-items:center;height:48px;overflow-x:auto;scrollbar-width:none}
.channel-scroll::-webkit-scrollbar{display:none}
.channel-pill{
  flex:0 0 auto;padding:7px 15px;border-radius:var(--radius-chip);
  font-size:14px;color:var(--ink-sub);white-space:nowrap;
  transition:background .18s ease-out,color .18s ease-out;
}
.channel-pill:hover{background:var(--canvas);color:var(--ink)}
.channel-pill.active{background:var(--brand-soft);color:var(--brand-deep);font-weight:600}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--radius-field);
  font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:background .2s ease-out,color .2s ease-out,box-shadow .2s ease-out,transform .2s ease-out,border-color .2s ease-out;
}
.btn-accent{background:var(--accent);color:#fff;box-shadow:var(--shadow-card)}
.btn-accent:hover{background:var(--accent-deep);transform:translateY(-1px);box-shadow:var(--shadow-card-hover)}
.btn-accent:active{transform:translateY(0);box-shadow:none}
.btn-ghost{background:#fff;border-color:var(--line);color:var(--ink)}
.btn-ghost:hover{background:var(--brand-soft);border-color:var(--brand);color:var(--brand-deep)}
.btn:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.btn:disabled{background:var(--canvas);color:var(--ink-sub);opacity:.6;cursor:not-allowed;box-shadow:none}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--brand)}
.text-link svg{transition:transform .2s ease-out}
.text-link:hover svg{transform:translateX(2px)}
.text-link:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}

/* ---------- Hero ---------- */
.hero{background:linear-gradient(180deg,var(--canvas) 0%,#fff 100%);padding:52px 0 76px}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;line-height:20px;color:var(--ink-sub);margin-bottom:20px}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .sep{color:var(--brand-line)}
.breadcrumb .current{color:var(--ink)}
.hero-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.hero-eyebrow{display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:var(--radius-chip);background:var(--brand-soft);color:var(--brand-deep);font-size:12px;font-weight:600;letter-spacing:.08em}
.hero-title{font-size:40px;line-height:48px;font-weight:700;letter-spacing:-.01em;margin:16px 0 16px}
.hero-sub{font-size:17px;line-height:30px;color:var(--ink-sub);max-width:540px}
.hero-meta{display:flex;flex-wrap:wrap;gap:14px 30px;margin:26px 0 30px}
.meta-item{display:flex;flex-direction:column;gap:2px;padding-left:12px;border-left:2px solid var(--brand-line)}
.meta-label{font-size:12px;letter-spacing:.04em;color:var(--ink-sub)}
.meta-value{font-size:15px;font-weight:600;color:var(--ink)}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px}
.hero-media{border-radius:var(--radius-card);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow-card);background:var(--brand-soft)}
.hero-media img{width:100%;aspect-ratio:16/10;object-fit:cover}

/* ---------- Sections ---------- */
.section{padding:84px 0}
.section-alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:720px;margin-bottom:40px}
.eyebrow{display:block;font-size:12px;font-weight:600;letter-spacing:.08em;color:var(--ink-sub);margin-bottom:10px}
.section-title{font-size:28px;line-height:36px;font-weight:700;margin:0 0 12px}
.section-desc{font-size:16px;line-height:28px;color:var(--ink-sub)}

/* Feature rows */
.feature-row{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.feature-row + .feature-row{margin-top:72px}
.feature-row.is-reverse .feature-text{order:2}
.feature-row.is-reverse .feature-media{order:1}
.feature-media{border-radius:var(--radius-card);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow-card);background:var(--brand-soft)}
.feature-media img{width:100%;aspect-ratio:16/10;object-fit:cover}
.feature-title{font-size:24px;line-height:34px;font-weight:700;margin:0 0 14px}
.feature-text p{font-size:16px;line-height:30px;color:var(--ink-sub);margin-bottom:16px}
.check-list{display:grid;gap:10px;margin-top:4px}
.check-list li{display:flex;gap:10px;align-items:flex-start;font-size:15px;line-height:26px}
.check-list svg{flex:0 0 auto;margin-top:5px;color:var(--brand)}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
.tag{display:inline-flex;align-items:center;padding:5px 12px;border-radius:var(--radius-chip);background:var(--brand-soft);color:var(--brand-deep);font-size:13px;line-height:20px;font-weight:500}

/* Stats band */
.stats-band{
  background-image:linear-gradient(rgba(246,248,251,.93),rgba(246,248,251,.93)),url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.stat-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);padding:26px 24px;box-shadow:var(--shadow-card);transition:transform .2s ease-out,box-shadow .2s ease-out}
.stat-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-card-hover)}
.stat-num{font-family:var(--font-num);font-size:32px;line-height:40px;font-weight:700;color:var(--brand);letter-spacing:-.01em}
.stat-unit{font-size:16px;font-weight:600;color:var(--brand);margin-left:4px}
.stat-label{margin-top:8px;font-size:14px;line-height:24px;color:var(--ink-sub)}

/* Steps */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.step{background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);padding:24px;box-shadow:var(--shadow-card);transition:transform .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out}
.step:hover{transform:translateY(-2px);box-shadow:var(--shadow-card-hover);border-color:var(--brand-line)}
.step-num{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:var(--radius-chip);background:var(--accent-soft);color:#B4661F;font-family:var(--font-num);font-weight:700;font-size:15px;margin-bottom:14px}
.step h3{font-size:18px;line-height:26px;font-weight:600;margin:0 0 8px}
.step p{font-size:14px;line-height:24px;color:var(--ink-sub)}

/* Scenes */
.scene-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:52px;align-items:center}
.scene-media{border-radius:var(--radius-card);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow-card);background:var(--brand-soft)}
.scene-media img{width:100%;aspect-ratio:4/5;object-fit:cover}
.scene-list{display:grid;gap:6px}
.scene-item{padding:16px 0 16px 18px;border-left:3px solid var(--brand-line);transition:border-color .2s ease-out,background .2s ease-out}
.scene-item:hover{border-left-color:var(--brand);background:#fff}
.scene-item h3{font-size:16px;line-height:26px;font-weight:600;margin:0 0 4px}
.scene-item p{font-size:14px;line-height:24px;color:var(--ink-sub)}

/* FAQ */
.faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:0 40px}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{list-style:none;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:20px 0;font-size:16px;line-height:26px;font-weight:600;color:var(--ink);cursor:pointer;transition:color .18s ease-out}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--brand)}
.faq-item summary:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.faq-icon{flex:0 0 auto;width:22px;height:22px;color:var(--brand);transition:transform .18s ease-out}
.faq-item[open] .faq-icon{transform:rotate(45deg)}
.faq-body{padding:0 0 22px;font-size:15px;line-height:26px;color:var(--ink-sub);max-width:560px}

/* Link cards */
.link-cards{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.link-card{display:flex;align-items:center;gap:18px;background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);padding:22px 24px;box-shadow:var(--shadow-card);transition:transform .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out}
.link-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-card-hover);border-color:var(--brand-line)}
.link-card:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.link-icon{width:46px;height:46px;border-radius:var(--radius-img);background:var(--brand-soft);color:var(--brand);display:flex;align-items:center;justify-content:center;flex:0 0 auto}
.link-card h3{font-size:17px;line-height:26px;font-weight:600;margin:0 0 4px}
.link-card p{font-size:14px;line-height:22px;color:var(--ink-sub)}
.link-arrow{margin-left:auto;color:var(--brand);flex:0 0 auto;transition:transform .2s ease-out}
.link-card:hover .link-arrow{transform:translateX(3px)}

/* CTA */
.cta-band{display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;background:var(--brand-soft);border:1px solid var(--brand-line);border-radius:20px;padding:40px 44px}
.cta-band h2{font-size:24px;line-height:34px;font-weight:700;margin:0 0 8px}
.cta-band p{font-size:15px;line-height:26px;color:var(--ink-sub);max-width:620px}

/* ---------- Footer ---------- */
.site-footer{background:var(--brand-deep);color:#C7DDEE;margin-top:8px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.5fr;gap:32px;padding:64px 0 40px}
.footer-brand{display:flex;align-items:center;gap:10px}
.footer-brand .brand-mark{background:rgba(255,255,255,.12);color:#fff}
.footer-brand strong{color:#fff;font-size:16px;font-weight:700}
.footer-desc{font-size:14px;line-height:24px;margin:14px 0 12px;color:#B4CFE3}
.footer-contact{font-size:13px;line-height:22px;color:#B4CFE3}
.footer-contact strong{color:#fff;font-weight:600}
.footer-col h4{font-size:14px;font-weight:600;color:#fff;margin:0 0 14px;letter-spacing:.04em}
.footer-col ul li{margin-bottom:10px}
.footer-col a{font-size:14px;color:#B4CFE3;transition:color .18s ease-out}
.footer-col a:hover{color:#fff;text-decoration:underline;text-underline-offset:2px}
.footer-sub p{font-size:14px;line-height:24px;color:#B4CFE3;margin-bottom:12px}
.footer-form{display:flex;gap:8px}
.footer-form input{flex:1;min-width:0;height:42px;padding:0 12px;border-radius:var(--radius-field);border:1px solid rgba(255,255,255,.24);background:rgba(255,255,255,.08);color:#fff;font-size:14px}
.footer-form input::placeholder{color:#9FBBD1}
.footer-form input:focus{outline:none;border-color:#fff;box-shadow:0 0 0 3px rgba(255,255,255,.16)}
.footer-form button{height:42px;padding:0 16px;border:none;border-radius:var(--radius-field);background:var(--accent);color:#fff;font-size:14px;font-weight:600;cursor:pointer;transition:background .2s ease-out}
.footer-form button:hover{background:var(--accent-deep)}
.footer-bottom{display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;padding:20px 0 28px;border-top:1px solid rgba(255,255,255,.14);font-size:13px;line-height:22px;color:#9FBBD1}

/* ---------- Responsive ---------- */
@media (max-width:1023px){
  .container{padding:0 24px}
  .nav-links{
    position:absolute;left:0;right:0;top:100%;z-index:60;
    display:none;flex-direction:column;align-items:stretch;gap:4px;
    padding:12px 24px 18px;background:#fff;border-top:1px solid var(--line);
    box-shadow:var(--shadow-card);margin-left:0;
  }
  .nav-links.is-open{display:flex}
  .nav-link{padding:12px 10px;border-radius:10px;font-size:15px}
  .nav-search{display:none}
  .nav-toggle{display:inline-flex}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero-media{order:2}
  .hero-title{font-size:32px;line-height:42px}
  .section{padding:64px 0}
  .feature-row{grid-template-columns:1fr;gap:28px}
  .feature-row.is-reverse .feature-text{order:0}
  .feature-row.is-reverse .feature-media{order:0}
  .stat-grid{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr)}
  .scene-grid{grid-template-columns:1fr;gap:32px}
  .scene-media img{aspect-ratio:16/10}
  .faq-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;padding:52px 0 32px}
}
@media (max-width:639px){
  body{font-size:16px;line-height:28px}
  .container{padding:0 18px}
  .brand-text strong{font-size:15px}
  .brand-text em{display:none}
  .hero{padding:34px 0 48px}
  .hero-title{font-size:27px;line-height:36px}
  .hero-actions .btn{flex:1 1 100%}
  .section{padding:52px 0}
  .section-title{font-size:22px;line-height:30px}
  .feature-title{font-size:20px;line-height:30px}
  .stat-grid{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .stat-num{font-size:28px;line-height:36px}
  .link-cards{grid-template-columns:1fr}
  .cta-band{padding:28px 22px;border-radius:16px}
  .cta-band h2{font-size:20px;line-height:30px}
  .cta-band .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-bottom{flex-direction:column;gap:6px}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *{transition:none !important;animation:none !important}
  .stat-card:hover,.step:hover,.link-card:hover,.btn-accent:hover{transform:none !important}
}